Credit: Getty

Finneas and Claudia Sulewski just tied the knot, and new details are coming in about the superstars in attendance, including Billie Eilish!

The 24-year-old “you should see me in a crown” singer officiated her 29-year-old big brother’s wedding to the 30-year-old YouTube star and actress, which took place at the San Ysidro Ranch in Santa Barbara, Calif.

TMZ reports that the couple “kept things romantic, personal and very much a family affair as they started their next chapter together.”

Find out who else was in attendance…

Posted To:Billie Eilish Carter Gregory celebrity weddings Claudia Sulewski Dax Shepard Devon Lee Carlson Emma Chamberlain Finneas Hailey Bieber Jason Sudeikis Jesse Jo Stark Justin Bieber Kristen Bell Nat Wolff Nina Dobrev Rachel Sennott Rebecca Black Stassie Karanikolaou